Reader George Robertson wants to give his mate some speed. He writes:My wife has an iMac from 2010 (model 2389) that she says runs really slowly. I can't afford a new Mac, but as a Christmas present I would like to make this one faster. It currently has 4GB of RAM. Would adding more make it noticeably faster?That iMac will hold up to 16GB of RAM. These days 4GB is a little light so it's not a bad idea at all to bump up the RAM. However, if you do this on the sly and then expect your wife to burst into the room shouting "George, it's a miracle! My iMac has suddenly turned into a speed demon!" you're going to be disappointed. A RAM upgrade like this does not a miracle make.If you're looking for the Big Reaction, you want to perform a Bigger Upgrade. And by that I do mean adding an SSD to this computer. Configuring that SSD as the startup drive is the kind of night-and-day difference you're hoping to see. There are a couple of ways you can approach it.The first is to simply replace
